Full Stack Infra Engineer

RED ALPHA CYBERSECURITY PTE. LTD.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Benefits offered by this job

On-job training with allowance

Job summary

Red Alpha Cybersecurity is seeking a Full Stack Infra Engineer to design, implement, and maintain robust, secure infrastructure across LAN, WAN, and cloud environments. You’ll contribute to both project work and daily operations of mission-critical systems, with growth into advanced roles across networking, infrastructure, and cybersecurity.

The role involves configuring network appliances, conducting vulnerability assessments, and ensuring SLA-aligned performance.

Qualifications

• CCNA certification is required; CCNP is a strong advantage.
• Hands-on with Windows Server, Linux/Unix, and VM environments.
• Exposure to security appliances and vulnerability scanning tools.

Responsibilities

• Design, implement, and maintain LAN, WAN, WLAN, VPN, and firewall systems.
• Configure and deploy network appliances, routers, switches, and load balancers (e.g. Cisco, Fortinet).
• Conduct vulnerability assessments and support remediation across network layers.
• Troubleshoot network performance issues and ensure minimal downtime.
• Work closely with clients and teams to generate system specs and present architecture solutions.
• Plan, execute, and monitor IT infrastructure setup and upgrades (on-prem and virtualised).
• Manage Windows, Unix/Linux servers, virtual machines, and databases (e.g. SQL Server, Oracle).
• Perform routine preventive maintenance and respond promptly to system alerts and issues.
• Support operational systems to meet SLA requirements.
• Participate in change management, disaster recovery, and patch management processes.

Skills

CCNA Certification

CCNP Advantage

Windows Server

Linux/Unix

VM Environments

SQL Server/Oracle

Networking Devices

System Hardening

Patching/ITIL

Security & Monitoring Tools

Job description

Red Alpha Cybersecurity is hiring Full Stack Infra Engineer who are eager to design, implement, and maintain robust and secure infrastructure across LAN, WAN, and cloud environments. You’ll be involved in both project-based work and the daily operations of mission-critical systems, with opportunities to grow into advanced roles across networking, infrastructure, and cybersecurity.

What You’ll Be Doing

• Design, implement, and maintain LAN, WAN, WLAN, VPN, and firewall systems
• Configure and deploy network appliances, routers, switches, and load balancers (e.g. Cisco, Fortinet)
• Conduct vulnerability assessments and support remediation across network layers
• Troubleshoot network performance issues and ensure minimal downtime
• Work closely with clients and teams to generate system specs and present architecture solutions
• Plan, execute, and monitor IT infrastructure setup and upgrades (on-prem and virtualised)
• Manage and maintain Windows, Unix/Linux servers, virtual machines, and databases (e.g. SQL Server, Oracle)
• Perform routine preventive maintenance and respond promptly to system alerts and issues
• Support operational systems to meet SLA requirements
• Participate in change management, disaster recovery, and patch management processes

What You Should Know or Be Eager to Learn

Preferred Technical Skills (not mandatory)

• CCNA certification is required; CCNP is a strong advantage
• Familiarity with Microsoft Windows Server, Linux/Unix OS, and VM environments
• Basic database knowledge (e.g. SQL Server, Oracle)
• Hands-on experience with networking devices (e.g. Cisco routers/switches, firewalls, VPNs)
• Understanding of system hardening, patching, and ITIL-based operations
• Exposure to security appliances and tools for vulnerability scanning and network monitoring

Mindset We Look For

• Problem-solver with strong analytical and troubleshooting skills
• Detail-oriented and self-motivated
• Strong communication and teamwork abilities
• Ability to stay up to date with evolving infrastructure and security technologies

• All selected candidates will undergo a 10-week, fully sponsored on-job-training with allowance, before being deployed full-time for 3 years.